[PATCH v2 0/2] Add Agilex eMMC daughter card support

[PATCH v2 0/2] Add Agilex eMMC daughter card support

[tzeyee.ng]

From: Ng Tze Yee <tzeyee.ng@altera.com>

The Agilex SoCDK supports interchangeable daughter cards for different
storage configurations. This series adds support for the eMMC daughter
card variant.

The eMMC daughter card is mutually exclusive with the default SDMMC
daughter card as it occupies the same physical slot on the SoCDK.
Therefore, a separate device tree is required to properly configure
the system when using the eMMC variant.

This series:
- Documents the new compatible string for the eMMC daughter card
- Adds a new DTS file based on the existing NAND variant with eMMC-
  specific MMC controller configuration

Changes in v2:
- Add new compatible string for the eMMC daughter card in the binding file
- Fix space indentation in socfpga_agilex_socdk_emmc.dts
- Fix compatible string in socfpga_agilex_socdk_emmc.dts
- Rephase commit messages for clarity

Ng Tze Yee (2):
  dt-bindings: intel: Add Agilex eMMC support
  arm64: dts: socfpga: agilex: add emmc support

 .../bindings/arm/intel,socfpga.yaml           |   1 +
 arch/arm64/boot/dts/intel/Makefile            |   1 +
 .../dts/intel/socfpga_agilex_socdk_emmc.dts   | 105 ++++++++++++++++++
 3 files changed, 107 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts

-- 
2.25.1

[PATCH v2 1/2] dt-bindings: intel: Add Agilex eMMC support

[tzeyee.ng]

From: Ng Tze Yee <tzeyee.ng@altera.com>

Agilex devkit support a separate eMMC daughter card. Document Agilex
eMMC daughter board compatible.

Signed-off-by: Ng Tze Yee <tzeyee.ng@altera.com>
---
Changes in v2:
- Add new compatible string for the eMMC daughter card in the binding file
---
 Documentation/devicetree/bindings/arm/intel,socfpga.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
index c918837bd41c..5fe0938662b0 100644
--- a/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
+++ b/Documentation/devicetree/bindings/arm/intel,socfpga.yaml
@@ -20,6 +20,7 @@ properties:
               - intel,n5x-socdk
               - intel,socfpga-agilex-n6000
               - intel,socfpga-agilex-socdk
+              - intel,socfpga-agilex-socdk-emmc
           - const: intel,socfpga-agilex
       - description: Agilex3 boards
         items:
-- 
2.25.1

[PATCH v2 2/2] arm64: dts: socfpga: agilex: add emmc support

[tzeyee.ng]

From: Ng Tze Yee <tzeyee.ng@altera.com>

The Agilex devkit supports a separate eMMC daughter card. The
eMMC daughter card replaces the SDMMC slot that is on the default
daughter card and thus requires a separate board dts file.

Signed-off-by: Ng Tze Yee <tzeyee.ng@altera.com>
---
Changes in v2:
- Fix space indentation in socfpga_agilex_socdk_emmc.dts
- Fix compatible string in socfpga_agilex_socdk_emmc.dts
- Rephase commit messages for clarity
---
 arch/arm64/boot/dts/intel/Makefile            |   1 +
 .../dts/intel/socfpga_agilex_socdk_emmc.dts   | 105 ++++++++++++++++++
 2 files changed, 106 insertions(+)
 create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts

diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
index a117268267ee..6f4da79725de 100644
--- a/arch/arm64/boot/dts/intel/Makefile
+++ b/arch/arm64/boot/dts/intel/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0-only
 dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
 				socfpga_agilex_socdk.dtb \
+				socfpga_agilex_socdk_emmc.dtb \
 				socfpga_agilex_socdk_nand.dtb \
 				socfpga_agilex3_socdk.dtb \
 				socfpga_agilex5_socdk.dtb \
diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts
new file mode 100644
index 000000000000..c616c1eb6f1c
--- /dev/null
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2026, Intel Corporation
+ */
+#include "socfpga_agilex.dtsi"
+
+/ {
+	model = "SoCFPGA Agilex SoCDK";
+	compatible = "intel,socfpga-agilex-socdk-emmc", "intel,socfpga-agilex";
+
+	aliases {
+		serial0 = &uart0;
+		ethernet0 = &gmac0;
+		ethernet1 = &gmac1;
+		ethernet2 = &gmac2;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led0 {
+			label = "hps_led0";
+			gpios = <&portb 20 GPIO_ACTIVE_HIGH>;
+		};
+
+		led1 {
+			label = "hps_led1";
+			gpios = <&portb 19 GPIO_ACTIVE_HIGH>;
+		};
+
+		led2 {
+			label = "hps_led2";
+			gpios = <&portb 21 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	memory@80000000 {
+		device_type = "memory";
+		/* We expect the bootloader to fill in the reg */
+		reg = <0 0x80000000 0 0>;
+	};
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gmac2 {
+	status = "okay";
+	/* PHY delays is configured via skew properties */
+	phy-mode = "rgmii";
+	phy-handle = <&phy0>;
+
+	max-frame-size = <9000>;
+
+	mdio0 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "snps,dwmac-mdio";
+		phy0: ethernet-phy@0 {
+			reg = <4>;
+
+			txd0-skew-ps = <0>; /* -420ps */
+			txd1-skew-ps = <0>; /* -420ps */
+			txd2-skew-ps = <0>; /* -420ps */
+			txd3-skew-ps = <0>; /* -420ps */
+			rxd0-skew-ps = <420>; /* 0ps */
+			rxd1-skew-ps = <420>; /* 0ps */
+			rxd2-skew-ps = <420>; /* 0ps */
+			rxd3-skew-ps = <420>; /* 0ps */
+			txen-skew-ps = <0>; /* -420ps */
+			txc-skew-ps = <900>; /* 0ps */
+			rxdv-skew-ps = <420>; /* 0ps */
+			rxc-skew-ps = <1680>; /* 780ps */
+		};
+	};
+};
+
+&mmc {
+	status = "okay";
+	cap-mmc-highspeed;
+	broken-cd;
+	bus-width = <4>;
+	clk-phase-sd-hs = <0>, <135>;
+};
+
+&osc1 {
+	clock-frequency = <25000000>;
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+	disable-over-current;
+};
+
+&watchdog0 {
+	status = "okay";
+};
-- 
2.25.1

Re: [PATCH v2 2/2] arm64: dts: socfpga: agilex: add emmc support

[Dinh Nguyen]

On 1/14/26 03:42, tzeyee.ng@altera.com wrote:
> From: Ng Tze Yee <tzeyee.ng@altera.com>
> 
> The Agilex devkit supports a separate eMMC daughter card. The
> eMMC daughter card replaces the SDMMC slot that is on the default
> daughter card and thus requires a separate board dts file.
> 
> Signed-off-by: Ng Tze Yee <tzeyee.ng@altera.com>
> ---
> Changes in v2:
> - Fix space indentation in socfpga_agilex_socdk_emmc.dts
> - Fix compatible string in socfpga_agilex_socdk_emmc.dts
> - Rephase commit messages for clarity
> ---
>   arch/arm64/boot/dts/intel/Makefile            |   1 +
>   .../dts/intel/socfpga_agilex_socdk_emmc.dts   | 105 ++++++++++++++++++
>   2 files changed, 106 insertions(+)
>   create mode 100644 arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts
> 
> diff --git a/arch/arm64/boot/dts/intel/Makefile b/arch/arm64/boot/dts/intel/Makefile
> index a117268267ee..6f4da79725de 100644
> --- a/arch/arm64/boot/dts/intel/Makefile
> +++ b/arch/arm64/boot/dts/intel/Makefile
> @@ -1,6 +1,7 @@
>   # SPDX-License-Identifier: GPL-2.0-only
>   dtb-$(CONFIG_ARCH_INTEL_SOCFPGA) += socfpga_agilex_n6000.dtb \
>   				socfpga_agilex_socdk.dtb \
> +				socfpga_agilex_socdk_emmc.dtb \
>   				socfpga_agilex_socdk_nand.dtb \
>   				socfpga_agilex3_socdk.dtb \
>   				socfpga_agilex5_socdk.dtb \
> diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts
> new file mode 100644
> index 000000000000..c616c1eb6f1c
> --- /dev/null
> +++ b/arch/arm64/boot/dts/intel/socfpga_agilex_socdk_emmc.dts
> @@ -0,0 +1,105 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (C) 2026, Intel Corporation

This should be Altera.

> + */
> +#include "socfpga_agilex.dtsi"
> +
> +/ {
> +	model = "SoCFPGA Agilex SoCDK";

Please append "eMMC daughter board" to the model.

> +	compatible = "intel,socfpga-agilex-socdk-emmc", "intel,socfpga-agilex";
> +
> +	aliases {
> +		serial0 = &uart0;
> +		ethernet0 = &gmac0;
> +		ethernet1 = &gmac1;
> +		ethernet2 = &gmac2;
> +	};
> +
> +	chosen {
> +		stdout-path = "serial0:115200n8";
> +	};
> +
> +	leds {
> +		compatible = "gpio-leds";
> +		led0 {
> +			label = "hps_led0";
> +			gpios = <&portb 20 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		led1 {
> +			label = "hps_led1";
> +			gpios = <&portb 19 GPIO_ACTIVE_HIGH>;
> +		};
> +
> +		led2 {
> +			label = "hps_led2";
> +			gpios = <&portb 21 GPIO_ACTIVE_HIGH>;
> +		};
> +	};
> +
> +	memory@80000000 {
> +		device_type = "memory";
> +		/* We expect the bootloader to fill in the reg */
> +		reg = <0 0x80000000 0 0>;
> +	};
> +};
> +
> +&gpio1 {
> +	status = "okay";
> +};
> +
> +&gmac2 {
> +	status = "okay";
> +	/* PHY delays is configured via skew properties */
> +	phy-mode = "rgmii";
> +	phy-handle = <&phy0>;
> +
> +	max-frame-size = <9000>;
> +
> +	mdio0 {
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		compatible = "snps,dwmac-mdio";
> +		phy0: ethernet-phy@0 {

This should be ethernet-phy@4

Dinh

Re: [PATCH v2 1/2] dt-bindings: intel: Add Agilex eMMC support

[Krzysztof Kozlowski]

On Wed, Jan 14, 2026 at 01:42:52AM -0800, tzeyee.ng@altera.com wrote:
> From: Ng Tze Yee <tzeyee.ng@altera.com>
> 
> Agilex devkit support a separate eMMC daughter card. Document Agilex
> eMMC daughter board compatible.
> 
> Signed-off-by: Ng Tze Yee <tzeyee.ng@altera.com>
> ---
> Changes in v2:
> - Add new compatible string for the eMMC daughter card in the binding file
> ---
>  Documentation/devicetree/bindings/arm/intel,socfpga.yaml | 1 +
>  1 file changed, 1 insertion(+)

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof